Grain-separator.



H. A; CAMPBELL.

GRAIN SEPARATOE.

APPLICATION FILED AUG. 24, 1908. 945,487. Patented Jan. 4,1910.

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H. A. CAMPBELL. GRAIN SEPABATOR.

APPLICATION FILED AUG. 24, 1908.

Patented Jan. 4, 1910.

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H. A. CAMPBELL. GRAIN SEPARATOR.

APPLICATION FILED AUG. 24, 1908. 945,487, Patented Jan.4, 1910.

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GRAIN SEPARATOR. APPLICATION FILED AUG. 24, 1908.

Patented Jan.4, 1910.

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HARRY A. CAMPBELL, OF RIVER FALLS, W'ISCONSIN.

GRAIN-SEPARATOR.

Specification of Letters Patent.

Patented Jan. 4, 1310.

Application filed August 24., 1908. Serial No. 449,920.

To all whom it may concern:

Be it known that I, HARRY A. CAMPBELL, a citizen of the United States, residing at River Falls, in the county of Pierce and State of lVisconsin, have invented certain new and useful Improvements in Grain- Separators; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention has for its object to provide an improved machine especially adapted for the separation of grains and seeds, which vary in form, and to this end, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

This invention was especially devised as an improvement on the machine disclosed and broadly claimed in my prior patent- #89G,891, issued of date Aug. 25, 1908;

In the accompanying drawings which illustrate the invention, like characters inclicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a view in side elevation with some parts broken away, showing the improved ma chine. Fig. 2 is an approximately horizontal section taken on the line m of Fig. 1. Fig. 3 is a transverse vertical section taken on the line :0 00 of Fig. 1. Fig. 4 is a fragmentary view in vertical section taken longitudinally of the machine, approximately on the line x 0* of Fig. 3, some parts being broken away. Fig. 5 is a front end elevation of the machine. Fig. 6 is a transverse vertical section taken on the line :12 00 of Fig. 2. Fig. 7 is a bottom plan View of the hopper and spout mechanism removed from the machine. Fig. 8 is a horizontal section taken approximately on the line :0 m of Fig. 3. Fig. 9 is a detail view in side elevation, showing several coupling rods which connect the sections of the sectional trough of the hopper; and Fig. 10 is a view principally in longitudinal vertical section taken centrally through the machine, with some parts broken away.

The operative parts of the machine are all supported directly or indirectly from a recfrom the receiving toward the delivery end thereof. To thus mount the said drum, it is preferably provided with annular peripheral ..anges or hoops 3 that run on grooved supporting and driving wheels l, which wheels are carried by inclined driving shafts 5 mounted in suitable bearings on the end portions of the frame work. At the de ivery end of the drum, the shafts 5 are provided with pulleys '5 over which runs a belt 7 that causes the said shafts to rotate in unison in the same direction. At the receiving end of said drum, one of the said shafts 5 is provided with a pulley 8.

Mounted on suitable bearings on the end portions of the frame 1 and extending through the drum on the rising side thereof, is a shaft 9 that carries a brush 10 arranged to work against the inner surface of the said drum. At the receiving end of the drum, this shaft 9 is provided with a pulley 11, over which and the pulley 8, a belt 12 runs to impart rotary motion to the brush 10, in the direction of the arrow mark thereon, when the drum is rotated in the direction with the arrow marked adjacent. thereto in Fig. 3.

In this improved machine as in the machine disclosed in my prior patent, the inner surface of the drum 2 is formed with pockets or indentations 2 see Fig. 2, that are of such size and shape that they will receive the wheat kernels or berries but will not receive the oat kernels or berries. which latter are of such length that they will extend out of or span across the said pockets or indentations.

Extending longitudinally through the drum 2 considerably below the axis thereof, is a sheet metal trough 13, approximately the same length as the said drum. This trough at its upper edges is rigidly secured to small brackets let. through which as shown, supporting rods 15 are passed, the

ends of the said rods being rigidly secured to the end portions of the frame work 1. Inclined hopper plates 16 and 17 are rigidly secured at their inner edges to the upper flanged edges of the trough 13. The plate 16 terminates above the brush 10, while the plate 17 extends outward into close engagement with the downwardly moving side of the drum, and is shown as further supported by a rod 18, the ends of which are rigidly secured to the end portions ofthe frame work 1. Approximately U shaped inverted sheet metal channels 19 are rigidly secured means of an inclined spout 45. When the drum 2 is rotated in the direction of the arrow marked on Fig. 8, the wheat kernels or berries which fall into the pockets 2 thereof, will be carried upward and above the brush and above the receiving portion of the endless apron ate, and will be dropped into the latter and thereby carried either directly into the sectional trough or into the hopper plate 16 and from thence into said spout. A considerable portion of this wheat however, will be carried by the pockets of the drum upward and over to a point where it will fall either directly onto the sectional trough 20 or onto the hopper plate 17 and 7 from thence onto said trough 20. The com veyer or endless apron 44: is an important feature because it picks up a large amount of the wheat which otherwise would be permitted to roll or drop back to the bottom of the drum. At or near the delivery end of the drum, some oats will be carried upward by the drum and on the apron 44. Hence, it is important to so adjust the sectional trough 20 that only clean wheat will be delivered into the same, while mixed wheat and oats will be delivered into the lower trough 13. By the feed screw 29 the clean wheat will be carried in the sectional trough 20 toward the receiving end of the drum and will be dis- 7 charged from said trough through its spout 20; while the mixed wheat and oats dropped into the trough 13 will by the feed screw 27, be carried toward the receiving end of the drum and will be dropped back into the receiving end of said drum through the discharge passage 13*, and hence, will be again subjected to the separating action of the drum. The main body of the oats and other foreign materials will not be carried by the drum upward on the apron 44, but will be discharged out of the delivery end of the said drum. The purpose of the rotary brush 10 is to brush downward and out of the pockets of the drum, oats which will sometimes partly enter or catch into the pockets 2 of the drum. The brush will perform this function without dislodging the wheat because the oat kernels, as well known, have a fuzz or beard which will catch in the brush, while the wheat kernels are comparatively very smooth and furthermore, will more completely lodge within the pockets.

What I claim is:

1. In a machine of the kind described, the combination with an inclined rotary drum, of a hopper within said drum supported independently thereof, a conveyer working in said hopper and operated to feed the material caught in said hopper toward the receiving end of said drum, and an endless conveyer working in said drum on the rising side thereof and arranged to deliver the material carried upward by said drum, into the said hopper.

2. In a machine of'the kind described, the combination with an inclined rotary drum, of a hopper within said drum supported independently thereof, and having upper and lower longitudinally extending troughs, the upper of which troughs, overlies and partly covers said lower trough but terminates at the delivery end of the drum short of the lower trough and is arranged to deliver the material caught therein out of the receiving end of the drum, and the lower of which troughs, is arranged to deliver the material caught thereby back into the receiving end of the drum.

3. In a machine of the kind described, the combination with an inclined rotary drum, of a hopper within said drum supported independently thereof, and having upper and lover longitudinally extended troughs, the upper of which troughs overlies and partly covers said lower trough but terminates at the delivery end of the drum short of the lower trough and is arranged to deliver the material caught therein out of the receiving end of the drum, and the lower of which troughs, is arranged to deliver the material caught thereby back into the receiving end of the drum, and spiral co-nveyers working within the said upper and lower troughs.

a. In a machine of the kind described, the

combination with an inclined rotary drum, of a hopper within said drum supported in dependently thereof, and provided with an adjustable trough made up of overlapping and telescoping sections.

5. In a machine of the kind described, the combination with an inclined rotary drum, of a hopper within said drum supported independently thereof, and provided with upper and lower troughs, the former of which overlying and partly covering said lower trough and said lower trough being arranged to deliver material caught thereby into the receiving end of the drum, and the upper of which troughs is longitudinally adjustable and is arranged to deliver the material caught thereby out of the receiving end of the drum.

6. In a machine of the kind described, the combination with an inclined rotary drum, of a hopper within said drum supported independently thereof, and provided with a longitudinally adjustable trough arranged to deliver the material caught thereby out of the receiving end of the drum, and with endless conveyer within said drum working on the rising side thereof, and arranged to deliver the material caught thereby to the said hopper.

7 In a machine of the kind described, the combination with an inclined rotary drum, of a hopper within said drum supported independently thereof, and provided with longitudinallyadjustable trough sections independent of said hopper and arranged to deliver the material caught thereby out of the receiving end of the drum, and a spiral conveyer working in the said trough sections.

8. In a machine of the kind described, the combination with an inclined rotary drum, of a hopper within said drum supported independently thereof, and provided With a trough made up of overlapping sec tions arranged to deliver the material caught thereby out of the receiving end of the drum, bearings connected to the sections of said trough, and guide rods cooperating with said bearings to support said trough sections, one of which guide rods is threaded, is rotatively mounted and has threaded engage-V 10. In a machine of the kind described, a

the combination with an inclined rotary drum, of a hopper within said drum supported independently thereof, and provided with upper and lower troughs, the latter of which is arranged to deliver material caught thereby back into the receiving end of the drum, and the former of which troughs is made up of overlapping longitudi nally adjustable sections, and is arranged to deliver the material caught thereby out of the receiving end of the drum, spiral conveyers working in said troughs, bearings connected to the sections of said trough,

and rods cooperating with said bearings to support the trough sections, one of which guide rods is rotatively mounted and has threaded engagement with one of the said bearings.

11. In a machine of the kind described, the combination with an inclined rotary drum having pockets or indentations in its inner surface, of a hopper within said drum supported independently thereof, having upper and lower troughs, the lower of which is arranged to deliver material caught thereby back into the receiving end of the drum, and the upper of which troughs at the delivery end of the drum, terminates short of the said lower trough and is arranged to deliver the material caught thereby out of the receiving end of the drum, means for adjusting said upper trough longitudinally, and a conveyer working in said drum on the rising side thereof, and arranged to deliver material caught thereby into the said hopper.

12. In a machine of the kind described, the combination with an inclined rotary drum having pockets or indentations in its inner surface, of a hopper within the said drum supported independently thereof, and having a trough arranged to deliver material caught thereby out of the receiving end of the drum, a brush working in said drum on the rising side thereof, and an endless conveyer also within said drum on the rising side thereof located above the said brush and arranged to deliver ma terial caught thereby into the said hopper.

In testimony whereof I aiiix my signature f in presence of two witnesses.

HARRY A. CAMPBELL.

Witnesses:

JAY H. GRIMM, LUCY HILL. 

